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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: MsrpUri.html 5 2014-12-10 22:27:01Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.msrp;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.net.URI;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.net.URISyntaxException;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.util.ArrayList;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.util.Collections;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.util.LinkedHashSet;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.List;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.Set;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>/**<a name="line.18"></a>
<span class="sourceLineNo">019</span> * Represents an MRSP URI. This class only supports URIs that have session ID's.<a name="line.19"></a>
<span class="sourceLineNo">020</span> */<a name="line.20"></a>
<span class="sourceLineNo">021</span>public class MsrpUri {<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>    private final URI uri;<a name="line.23"></a>
<span class="sourceLineNo">024</span>    private final String sessionId;<a name="line.24"></a>
<span class="sourceLineNo">025</span>    private final String transport;<a name="line.25"></a>
<span class="sourceLineNo">026</span>    private final Set&lt;String&gt; parameters;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>    /**<a name="line.28"></a>
<span class="sourceLineNo">029</span>     * Constrcuctor.<a name="line.29"></a>
<span class="sourceLineNo">030</span>     *<a name="line.30"></a>
<span class="sourceLineNo">031</span>     * @throws URISyntaxException if {@code string} is not a valid MSRP URI<a name="line.31"></a>
<span class="sourceLineNo">032</span>     */<a name="line.32"></a>
<span class="sourceLineNo">033</span>    public MsrpUri(String string) throws URISyntaxException {<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>        // Parse URI<a name="line.35"></a>
<span class="sourceLineNo">036</span>        this.uri = new URI(string);<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>        // Basic structural checking<a name="line.38"></a>
<span class="sourceLineNo">039</span>        final String scheme = this.uri.getScheme();<a name="line.39"></a>
<span class="sourceLineNo">040</span>        if (scheme == null)<a name="line.40"></a>
<span class="sourceLineNo">041</span>            throw new URISyntaxException(string, "invalid MSRP URI: no scheme");<a name="line.41"></a>
<span class="sourceLineNo">042</span>        if (!MsrpConstants.MSRP_SCHEME.equalsIgnoreCase(scheme) &amp;&amp; !MsrpConstants.MSRPS_SCHEME.equalsIgnoreCase(scheme))<a name="line.42"></a>
<span class="sourceLineNo">043</span>            throw new URISyntaxException(string, "invalid MSRP URI: unknown scheme `" + scheme + "'");<a name="line.43"></a>
<span class="sourceLineNo">044</span>        if (this.uri.getAuthority() == null)<a name="line.44"></a>
<span class="sourceLineNo">045</span>            throw new URISyntaxException(string, "invalid MSRP URI: missing authority");<a name="line.45"></a>
<span class="sourceLineNo">046</span>        if (this.uri.getQuery() != null)<a name="line.46"></a>
<span class="sourceLineNo">047</span>            throw new URISyntaxException(string, "invalid MSRP URI: query string is not allowed");<a name="line.47"></a>
<span class="sourceLineNo">048</span>        if (this.uri.getFragment() != null)<a name="line.48"></a>
<span class="sourceLineNo">049</span>            throw new URISyntaxException(string, "invalid MSRP URI: fragment is not allowed");<a name="line.49"></a>
<span class="sourceLineNo">050</span>        final String path = this.uri.getPath();<a name="line.50"></a>
<span class="sourceLineNo">051</span>        if (path == null || path.length() == 0 || path.charAt(0) != '/')<a name="line.51"></a>
<span class="sourceLineNo">052</span>            throw new URISyntaxException(string, "invalid MSRP URI: no path, or path does not start with `/'");<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>        // Parse session ID, transport, and parameters out from path<a name="line.54"></a>
<span class="sourceLineNo">055</span>        final List&lt;String&gt; plist = new ArrayList&lt;&gt;(3);<a name="line.55"></a>
<span class="sourceLineNo">056</span>        for (int pos = 1; pos &lt;= path.length(); ) {<a name="line.56"></a>
<span class="sourceLineNo">057</span>            int end = path.indexOf(';', pos);<a name="line.57"></a>
<span class="sourceLineNo">058</span>            if (end == -1)<a name="line.58"></a>
<span class="sourceLineNo">059</span>                end = path.length();<a name="line.59"></a>
<span class="sourceLineNo">060</span>            plist.add(path.substring(pos, end));<a name="line.60"></a>
<span class="sourceLineNo">061</span>            pos = end + 1;<a name="line.61"></a>
<span class="sourceLineNo">062</span>        }<a name="line.62"></a>
<span class="sourceLineNo">063</span>        switch (plist.size()) {<a name="line.63"></a>
<span class="sourceLineNo">064</span>        case 0:<a name="line.64"></a>
<span class="sourceLineNo">065</span>            throw new URISyntaxException(string, "invalid MSRP URI: no session ID specified");<a name="line.65"></a>
<span class="sourceLineNo">066</span>        case 1:<a name="line.66"></a>
<span class="sourceLineNo">067</span>            throw new URISyntaxException(string, "invalid MSRP URI: no transport specified");<a name="line.67"></a>
<span class="sourceLineNo">068</span>        default:<a name="line.68"></a>
<span class="sourceLineNo">069</span>            break;<a name="line.69"></a>
<span class="sourceLineNo">070</span>        }<a name="line.70"></a>
<span class="sourceLineNo">071</span>        this.sessionId = plist.get(0);<a name="line.71"></a>
<span class="sourceLineNo">072</span>        this.transport = plist.get(1);<a name="line.72"></a>
<span class="sourceLineNo">073</span>        this.parameters = Collections.unmodifiableSet(new LinkedHashSet&lt;String&gt;(plist.subList(2, plist.size())));<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span>        // Verify transport is "tcp"<a name="line.75"></a>
<span class="sourceLineNo">076</span>        if (!this.transport.equals(MsrpConstants.TRANSPORT_TCP))<a name="line.76"></a>
<span class="sourceLineNo">077</span>            throw new URISyntaxException(string, "invalid MSRP URI: unknown transport `" + this.transport + "'");<a name="line.77"></a>
<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>    /**<a name="line.80"></a>
<span class="sourceLineNo">081</span>     * Get this instance as an {@link URI}.<a name="line.81"></a>
<span class="sourceLineNo">082</span>     */<a name="line.82"></a>
<span class="sourceLineNo">083</span>    public URI getUri() {<a name="line.83"></a>
<span class="sourceLineNo">084</span>        return this.uri;<a name="line.84"></a>
<span class="sourceLineNo">085</span>    }<a name="line.85"></a>
<span class="sourceLineNo">086</span><a name="line.86"></a>
<span class="sourceLineNo">087</span>    /**<a name="line.87"></a>
<span class="sourceLineNo">088</span>     * Determine whether this URI uses TLS.<a name="line.88"></a>
<span class="sourceLineNo">089</span>     */<a name="line.89"></a>
<span class="sourceLineNo">090</span>    public boolean isSecure() {<a name="line.90"></a>
<span class="sourceLineNo">091</span>        return MsrpConstants.MSRPS_SCHEME.equalsIgnoreCase(this.uri.getScheme());<a name="line.91"></a>
<span class="sourceLineNo">092</span>    }<a name="line.92"></a>
<span class="sourceLineNo">093</span><a name="line.93"></a>
<span class="sourceLineNo">094</span>    /**<a name="line.94"></a>
<span class="sourceLineNo">095</span>     * Get the MSRP session ID specified in this URI.<a name="line.95"></a>
<span class="sourceLineNo">096</span>     */<a name="line.96"></a>
<span class="sourceLineNo">097</span>    public String getSessionId() {<a name="line.97"></a>
<span class="sourceLineNo">098</span>        return this.sessionId;<a name="line.98"></a>
<span class="sourceLineNo">099</span>    }<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span>    /**<a name="line.101"></a>
<span class="sourceLineNo">102</span>     * Get the MSRP transport specified in this URI. Currently will always be {@link MsrpConstants#TRANSPORT_TCP}.<a name="line.102"></a>
<span class="sourceLineNo">103</span>     */<a name="line.103"></a>
<span class="sourceLineNo">104</span>    public String getTransport() {<a name="line.104"></a>
<span class="sourceLineNo">105</span>        return this.transport;<a name="line.105"></a>
<span class="sourceLineNo">106</span>    }<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>    /**<a name="line.108"></a>
<span class="sourceLineNo">109</span>     * Get the URI-parameters, if any. The returned {@link Set} will iterate the parameters in their original order.<a name="line.109"></a>
<span class="sourceLineNo">110</span>     *<a name="line.110"></a>
<span class="sourceLineNo">111</span>     * @return unmodifiable set of URI-parameters, possibly empty<a name="line.111"></a>
<span class="sourceLineNo">112</span>     */<a name="line.112"></a>
<span class="sourceLineNo">113</span>    public Set&lt;String&gt; getParameters() {<a name="line.113"></a>
<span class="sourceLineNo">114</span>        return this.parameters;<a name="line.114"></a>
<span class="sourceLineNo">115</span>    }<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span>    /**<a name="line.117"></a>
<span class="sourceLineNo">118</span>     * Create an {@link Endpoint} corresponding to this instance.<a name="line.118"></a>
<span class="sourceLineNo">119</span>     */<a name="line.119"></a>
<span class="sourceLineNo">120</span>    public Endpoint toEndpoint() {<a name="line.120"></a>
<span class="sourceLineNo">121</span>        int port = this.uri.getPort();<a name="line.121"></a>
<span class="sourceLineNo">122</span>        if (port == -1)<a name="line.122"></a>
<span class="sourceLineNo">123</span>            port = MsrpConstants.DEFAULT_PORT;<a name="line.123"></a>
<span class="sourceLineNo">124</span>        return new Endpoint(this.uri.getHost(), port);<a name="line.124"></a>
<span class="sourceLineNo">125</span>    }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span>// Object<a name="line.127"></a>
<span class="sourceLineNo">128</span><a name="line.128"></a>
<span class="sourceLineNo">129</span>    @Override<a name="line.129"></a>
<span class="sourceLineNo">130</span>    public String toString() {<a name="line.130"></a>
<span class="sourceLineNo">131</span>        return this.uri.toString();<a name="line.131"></a>
<span class="sourceLineNo">132</span>    }<a name="line.132"></a>
<span class="sourceLineNo">133</span><a name="line.133"></a>
<span class="sourceLineNo">134</span>    @Override<a name="line.134"></a>
<span class="sourceLineNo">135</span>    public boolean equals(Object obj) {<a name="line.135"></a>
<span class="sourceLineNo">136</span>        if (obj == this)<a name="line.136"></a>
<span class="sourceLineNo">137</span>            return true;<a name="line.137"></a>
<span class="sourceLineNo">138</span>        if (obj == null || obj.getClass() != this.getClass())<a name="line.138"></a>
<span class="sourceLineNo">139</span>            return false;<a name="line.139"></a>
<span class="sourceLineNo">140</span>        final MsrpUri that = (MsrpUri)obj;<a name="line.140"></a>
<span class="sourceLineNo">141</span>        return this.uri.equals(that.uri);<a name="line.141"></a>
<span class="sourceLineNo">142</span>    }<a name="line.142"></a>
<span class="sourceLineNo">143</span><a name="line.143"></a>
<span class="sourceLineNo">144</span>    @Override<a name="line.144"></a>
<span class="sourceLineNo">145</span>    public int hashCode() {<a name="line.145"></a>
<span class="sourceLineNo">146</span>        return this.uri.hashCode();<a name="line.146"></a>
<span class="sourceLineNo">147</span>    }<a name="line.147"></a>
<span class="sourceLineNo">148</span>}<a name="line.148"></a>
<span class="sourceLineNo">149</span><a name="line.149"></a>




























































</pre>
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